13578220807 has 6 divisors (see below), whose sum is σ = 14423923448. Its totient is φ = 12779501664.

The previous prime is 13578220793. The next prime is 13578220847. The reversal of 13578220807 is 70802287531.

It is a de Polignac number, because none of the positive numbers 2^k-13578220807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13578220847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23491443 + ... + 23492020.

Almost surely, 2^13578220807 is an apocalyptic number.

13578220807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13578220807 is a deficient number, since it is larger than the sum of its proper divisors (845702641).

13578220807 is an equidigital number, since it uses as much as digits as its factorization.

13578220807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46983497 (or 46983480 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 13578220807 in words is "thirteen billion, five hundred seventy-eight million, two hundred twenty thousand, eight hundred seven".